Well, you already have the graphics card. Other specs:
Intel D845PESV Motherboard
Pentium 4 @ 2.4 Ghz 533Mhz FSB
Two sticks of Kingston KVR333X64C25/1G DDR
That's about all I can give you now. I haven't been able to boot it since I got it, so I don't have a program that reports the hardware installed.
I also tried the monitor that came with it with another computer, and the monitor works fine.